Inventor · disambiguated record
Walter Grau
Also filed as: GRAU WALTER
4 granted patents·71 citations·filing 1989–1994
78Inventor score
Top patents by PatentIndex Score
4 records- 0167US5014736AShut-off and control valveGROHE ARMATUREN FRIEDRICH·Filed 1989·Granted May 14, 1991·26 cites·12 claims
- 0258US5348042ACeramic-plate flow-control valveGROHE ARMATUREN FRIEDRICH·Filed 1993·Granted Sep 20, 1994·22 cites·11 claims
- 0347US5391853AProcess for the roller seam welding of tanks and roller seam resistance-welding machine for carrying out the processELPATRONIC AG·Filed 1994·Granted Feb 21, 1995·15 cites·8 claims
- 0437US5022631AFlow-control and shutofff valveGROHE ARMATUREN FRIEDRICH·Filed 1990·Granted Jun 11, 1991·8 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Walter Grau files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →